Quick answers
- Which hospitals does Mamdouh E. Rayan work at?
- Medicare's official clinician data lists Mamdouh E. Rayan at 5 hospitals: Loyola Gottlieb Memorial Hospital, Loyola University Medical Center, MacNeal Hospital, Silver Cross Hospital and Medical Centers and The University of Chicago Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mamdouh E. Rayan see patients?
- Medicare's clinician data lists 2 practice locations, including East Peoria, IL and Maywood, IL. Call before your visit to confirm the address.
- What is Mamdouh E. Rayan's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Mamdouh E. Rayan accept Medicare assignment?
- Yes. Medicare's clinician data says Mamdouh E. Rayan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mamdouh E. Rayan?
- (309) 740-4272, as listed in official Medicare / NPI Registry data.
- What is Mamdouh E. Rayan's NPI number?
- 1134261845. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mamdouh E. Rayan works
Medicare's Facility Affiliation Data lists Mamdouh E. Rayan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Loyola Gottlieb Memorial HospitalMelrose Park, IL · Acute Care Hospital · CCN 140008
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · CCN 140276
- MacNeal HospitalBerwyn, IL · Acute Care Hospital · CCN 140054
- Silver Cross Hospital and Medical CentersNew Lenox, IL · Acute Care Hospital · CCN 140213
- The University of Chicago Medical CenterChicago, IL · Acute Care Hospital · CCN 140088
Practice locations
Addresses where Mamdouh E. Rayan is enrolled with Medicare (CMS data updated 2026-10-02).
- 111 Oakwood RdEast Peoria, IL 61611 (309) 740‑4272
- 2160 S 1st AveMaywood, IL 60153 (708) 216‑8372
Group practices
Medicare enrollment lists Mamdouh E. Rayan as a member of these groups (CMS data updated 2026-10-02).
- Loyola University Medical Center953 clinicians in the group
- Central Illinois Radiological Associates Ltd209 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in East Peoria
Clinicians with the same Medicare primary specialty in East Peoria, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134261845 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians